Call of Duty: Black Ops 2 game designer David Vonderhaar is set to present a developer session at the upcoming Eurogamer Expo. Titled ‘Challenging Assumptions’, the chat will begin at 3pm on September 28.

Black Ops 2 is also on the show floor, meaning attendees can get a taste of the action before release.

Call of Duty: Black Ops 2 developer Treyarch published a list of PC gun balancing notes this week, and it has triggered a spate of violence aimed at Treyarch’s design director David Vonderhaar. Activision’s Dan Amrich has blogged to call for an end of the violent threats.

Call of Duty: Black Ops 2’s multiplayer wizard David Vonderhaar has given insight into Treyarch’s gun balancing process, essentially stating that player feedback doesn’t really matter all that much, but that cold, hard maths is the answer to solid balance. Get more details below.